Portulaca plant named &#39;LAZPRT1508&#39;

ABSTRACT

A new and distinct cultivar of  Portulaca  plant named ‘LAZPRT1508’, characterized by its semi-upright to spreading growth habit; vigorous growth habit; freely branching habit; freely flowering habit; fully double intense red purple-colored flowers; and excellent garden performance.

Botanical designation: Portulaca umbraticola Kunth.

Cultivar denomination: ‘LAZPRT1508’.

CROSS-REFERENCED TO CLOSELY-RELATED APPLICATIONS

Title: Portulaca Plant Named ‘LAZPRT1507’

Applicant: Johannes Sebastian Nebelmeir

Filed: Concurrently with the instant application

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Portulaca plant, botanically known as Portulaca umbraticola Kunth, commonly known as Wingpod Purslane, and hereinafter referred to by the name ‘LAZPRT1508’.

The new Portulaca plant is a product of a planned breeding program conducted by the Inventor in Merano, South Tyrol, Italy. The objective of the breeding program is to create new vigorous and freely branching Portulaca plants with numerous fully double flowers.

The new Portulaca plant is a naturally-occurring whole plant mutation of a proprietary selection of Portulaca umbraticola Kunth identified as code number III/11-A, not patented. The new Portulaca plant was discovered and selected by the Inventor as a flowering plant from within a population of plants of the parent selection in a controlled greenhouse environment in Merano, South Tyrol, Italy during the spring of 2014.

Asexual reproduction of the new Portulaca plant cuttings in a controlled greenhouse environment in Merano, South Tyrol, Italy since the spring of 2014, has shown that the unique features of this new Portulaca plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Portulaca have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘LAZPRT1508’. These characteristics in combination distinguish ‘LAZPRT1508’ as a new and distinct Portulaca plant:

1. Semi-upright to spreading growth habit.

2. Vigorous growth habit.

3. Freely branching habit.

4. Freely flowering habit.

5. Fully double intense red purple-colored flowers.

6. Excellent garden performance.

Plants of the new Portulaca can be compared to plants of the parent selection. Plants of the new Portulaca differ primarily from plants of the parent selection in flower color as plants of the parent selection have orange red-colored flowers.

Plants of the new Portulaca can also be compared to plants of Portulaca umbraticola Kunth ‘LAZPRT1507’, disclosed in a U.S. Plant Patent application filed concurrently. Plants of the new Portulaca differ primarily from plants of ‘LAZPRT1507’ in flower color as plants of ‘LAZPRT1507’ have red-colored flowers.

Plants of the new Portulaca can be compared to plants of Portulaca oleracea ‘Dynamite Rose’, not patented. In side-by-side comparisons, plants of the new Portulaca differ primarily from plants of ‘Dynamite Rose’ in the following characteristics:

1. Flowers of plants of the new Portulaca are more fully double with more petaloids per flower than flowers of plants of ‘Dynamite Rose’.

2. Petaloids of plants of the new Portulaca are narrower and flatter than petaloids of plants of ‘Dynamite Rose’.

3. Plants of the new Portulaca and ‘Dynamite Rose’ differ in petal and petaloid color as plants of ‘Dynamite Rose’ have deep rose-colored petals and petaloids.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying colored photograph illustrates the overall appearance of the new Portulaca plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Portulaca plant. The photograph comprises a side perspective view of a typical flowering plant of ‘LAZPRT1508’ grown in an outdoor nursery.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photograph and following observations, measurements and values describe plants grown during the summer in an outdoor nursery in Merano, South Tyrol, Italy and under cultural practices typical of commercial Portulaca production. During the production of the plants, day and night temperatures ranged from 13.8° C. to 28.6° C. and light levels ranged from 60 to 70 klux. Plants were four months old when the photograph and the description were taken. In the description, color references are made to The Royal Horticultural Society Colour Chart, 1995 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Portulaca umbraticola Kunth ‘LAZPRT1508’. -   Parentage: Naturally-occurring whole plant mutation of a proprietary     selection of Portulaca umbraticola Kunth identified as code number     III/11-A, not patented. -   Propagation:     -   -   Type.—By cuttings.         -   Time to initiate roots, summer.—About 10 days at             temperatures about 22° C.         -   Time to initiate roots, winter.—About 14 days at             temperatures about 22° C.         -   Time to produce a rooted young plant, summer.—About 24 days             at temperatures about 22° C.         -   Time to produce a rooted young plant, winter.—About 28 days             at temperatures about 15° C.         -   Root description.—Fine, fibrous; pale creamy white in color.         -   Rooting habit.—Freely branching; medium density. -   Plant description:     -   -   Plant and growth habit.—Semi-upright to spreading plant             habit; vigorous growth habit; relatively rapid growth rate.         -   Branching habit.—Freely branching habit with lateral             branches developing at every node; pinching is not required.         -   Overall plant height.—About 15 cm.         -   Plant diameter (area of spread).—About 40 cm. -   Lateral branch description:     -   -   Length.—About 30 cm to 50 cm.         -   Diameter.—About 5 mm.         -   Internode length.—About 3 mm to 30 mm.         -   Strength.—Moderately strong.         -   Texture.—Smooth, glabrous; succulent.         -   Color.—Close to 148A underlain with close to 177A and 185B. -   Leaf description:     -   -   Arrangement.—Opposite, subtending the flowers, whorled;             simple.         -   Length.—About 1.8 cm to 4 cm.         -   Width.—About 7 mm to 15 mm.         -   Shape.—Obovate.         -   Apex.—Initially acute becoming more rounded with             development.         -   Base.—Obtuse.         -   Margin.—Entire.         -   Texture, upper and lower surfaces.—Smooth, glabrous;             succulent.         -   Venation pattern.—Pinnate.         -   Color.—Developing leaves, upper surface: Close to 137A.             Developing leaves, lower surface: Close to 147C. Fully             expanded leaves, upper surface: Close to 146A; when exposed             to full sunlight, margins become closer to 185B in color;             venation, close to 147B. Fully expanded leaves, lower             surface: Close to 148B; venation, close to 147B.         -   Petioles.—Length: About 2 mm. Diameter: About 2 mm. Texture,             upper and lower surfaces: Smooth, glabrous; succulent.             Color, upper and lower surfaces: Close to 146C. -   Flower description:     -   -   Flowering habit and arrangement.—Fully double rotate flowers             clustered in terminal cymes; freely flowering habit with             potentially about 20 to 50 flowers developing per             inflorescence during the flowering season; flowers face             mostly upright; flowers remain open during the day and early             evening and do not close until late at night.         -   Fragrance.—None detected.         -   Natural flowering season.—Plants begin flowering about six             to eight weeks after planting; in the garden, plants flower             recurrently from mid-spring to mid-autumn in Italy.         -   Flower longevity.—Flowers last about three days on the             plant; flowers not persistent.         -   Inflorescence diameter.—About 5 cm.         -   Inflorescence height.—About 2 cm.         -   Flower diameter.—About 3.5 cm.         -   Flower length (height).—About 1.5 cm.         -   Flower buds.—Length: About 1 cm. Diameter: About 5 mm.             Shape: Ovoid. Color: Close to 147B.         -   Petals.—Quantity and arrangement: Five petals in a single             whorl. Length: About 1.7 cm. Width: About 1 cm. Shape:             Obovate. Apex: Emarginate. Base: Truncate. Margin: Entire.             Texture, upper and lower surfaces: Smooth, glabrous. Color:             When opening, upper surface: Close to 57A. When opening,             lower surface: Close to 57B shifting to close to 25B. Fully             opened, upper surface: Close to 57A marbled with close to             43A; after anthesis, color becomes closer to 60A . Fully             opened, lower surface: Close to 57B shifting to closer to             25B; after anthesis, color becomes closer to 60A.         -   Petaloids.—Quantity and arrangement: About 100 clustered at             the center of the flower. Length: About 1.2 cm. Width: About             2.5 mm, variable. Shape: Oblanceolate. Apex: Acute to             acuminate, variable. Base: Attenuate. Margin: Entire.             Texture, upper and lower surfaces: Smooth, glabrous. Color:             When opening, upper surface: Close to 57A marbled with close             to 43A. When opening, lower surface: Close to 57B marbled             with close to 43B; towards the flower center, close to 25B.             Fully opened, upper surface: Close to 57A marbled with close             to 43A; after anthesis, color becomes closer to 60A. Fully             opened, lower surface: Close to 57B shifting to closer to             43B; towards the flower center, close to 25B; after             anthesis, color becomes closer to 60A.         -   Sepals.—Quantity and arrangement: Two, opposite. Length:             About 1 cm. Width: About 7 mm. Shape: Deltoid. Apex: Acute.             Base: Truncate. Margin: Entire. Texture, upper surface:             Smooth, glabrous. Texture, lower surface: Smooth, glabrous;             leathery. Color, upper and lower surfaces: Close to 147C.         -   Peduncles.—Length: About 2 mm. Diameter: About 2 mm. Angle:             Mostly upright. Strength: Strong. Texture: Smooth, glabrous;             succulent. Color: Close to 146C.         -   Reproductive organs.—None observed as all reproductive             organs are transformed into petaloids.         -   Seeds & fruits.—Seed and fruit production have not been             observed on plants of the new Portulaca. -   Garden performance: Plants of the new Portulaca have been observed     to have excellent garden performance and to tolerate rain, wind,     drought, heat and low temperatures about 10° C. -   Pathogen & pest resistance: Plants of the new Portulaca have been     observed to be resistant to Phytophthora. Plants of the new     Portulaca have not been shown to be resistant to pests and other     pathogens common to Portulaca plants. 

It is claimed:
 1. A new and distinct Portulaca plant named ‘LAZPRT1508’ as illustrated and described. 